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Finding the Fourth Proportional to 162,953.10, 244,429.65 and 143,253.90

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Solution

The fourth proportional to 162,953.10, 244,429.65 and 143,253.90 is: 214,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,953.10 : 244,429.65 = 143,253.90 : x
  2. Step 2: Convert to fraction form
    162,953.10/244,429.65 = 143,253.90/x
  3. Step 3: Cross multiply
    162,953.10x = 244,429.65 × 143,253.90
  4. Step 4: Simplify right side
    162,953.10x = 35,015,500,638.14
  5. Step 5: Solve for x
    x = 35,015,500,638.14/162,953.10
  6. Step 6: Final answer
    x = 214,880.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.